
// 日期格式化
 function parseTime(time, pattern) {
	if (arguments.length === 0 || !time) {
		return null
	}
	const format = pattern || '{y}-{m}-{d} {h}:{i}:{s}'
	let date
	if (typeof time === 'object') {
		date = time
	} else {
		if ((typeof time === 'string') && (/^[0-9]+$/.test(time))) {
			time = parseInt(time)
		} else if (typeof time === 'string') {
			time = time.replace(new RegExp(/-/gm), '/');
		}
		if ((typeof time === 'number') && (time.toString().length === 10)) {
			time = time * 1000
		}
		date = new Date(time)
	}
	const formatObj = {
		y: date.getFullYear(),
		m: date.getMonth() + 1,
		d: date.getDate(),
		h: date.getHours(),
		i: date.getMinutes(),
		s: date.getSeconds(),
		a: date.getDay()
	}
	const time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
		let value = formatObj[key]
		// Note: getDay() returns 0 on Sunday
		if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value] }
		if (result.length > 0 && value < 10) {
			value = '0' + value
		}
		return value || 0
	})
	return time_str
}

function getTimer(stringTime) {
  var minute = 1000 * 60;
  var hour = minute * 60;
  var day = hour * 24;
  var week = day * 7;
  var month = day * 30; 
  var time1 = new Date().getTime();//当前的时间戳
  console.log(time1);
  var time2 = Date.parse(new Date(stringTime));//指定时间的时间戳
  console.log(time2);
  var time = time1 - time2;

  var result = null;
  if (time < 0) {
      alert("设置的时间不能大于当前时间！");
  } else if (time / month >= 1) {
      result = "发布于：" + parseInt(time / month) + "月前";
  } else if (time / week >= 1) {
      result = "发布于：" + parseInt(time / week) + "周前";
  } else if (time / day >= 1) {
      result = "发布于：" + parseInt(time / day) + "天前";
  } else if (time / hour >= 1) {
      result = "发布于：" + parseInt(time / hour) + "小时前";
  } else if (time / minute >= 1) {
      result = "发布于：" + parseInt(time / minute) + "分钟前";
  } else {
      result = "刚刚发布！";
  }
  return result;
}
